Question

WILL VOTE BRAINIEST IF CORRECT(must be next few minutes): The formula for the area of circle A is Area=πr2 . Sector CAB is a fraction of circle A. In degrees, the fraction is θ/360∘ . In radians, the fraction is _____. Inserting this fraction into the formula for the area of a circle, and then simplifying, results in the formula _____.
(image attached)
choices: 2pi0, 0pi, 0/2pi, area=0r^2, area= 2pi0r^2, area= 0/2r^2

Answer 1

A /  [ pi r^2 ]   =   θ / [ 2pi ]           [ multiply both sides by pi r^2  ]

 

A  =  [ θ / 2 ]  r^2  =    (1/2)r^2 θ